Agitator for tan-vats



(No Model.)

A. T. BULL &u W. HILL, Jr.

AGITATOR FOB TAN VATS.

Patented Aug. 25, 1885.

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IJVVEJVTORS ai." %2 923 therren STATES PATENT OFFICE ARTIIUR T. BULL AND VVILLIAM HILL, JR., OF LIMESTONE, NE\V YORK.

AGITATOR FOR TAN-VATS.

SPECIFICAT ION forming part of Letters Patent No. 324916, dated August 25, 1885.

Application filed June 13, 1885.

To all whom it may concern:

Be it known that we, ARTHUR T. BULL and WILLIAM HILL, Jr., citizens of the United States, residing at Lincstoue, in the County ofGattaraugus and State ot'New York,

have invented certain new and useful Im- 1 provements in Agitators for Tan-Vats; and we do declare the following to be a full, clear, and exact description ot' the invention, such IO as will enable others slilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to the letters and figures of reference marked thereon, which form a part of this spccification.

This invention has relation to inprovenents in devices for agitating acids in tan-mts; and it consists in the Construction and novel arrangement of devices, as will be hereinafter fully explained, and particularly pointed out 2 5 tional view.

Referring by letter to the accompanying drawing, A designates the vat, which is construeted in the usual well-known manner, having the supporting-strip B, to which is at- 0 tached at its upper end the tube or pipe G,

having at its lower end lateral perforations a j forming an exit for the air which is therein introdueed, as will be further herein explained.

(Jonnected to the tubes O, and communicat- 5 ing therewith, are the pipes D, which are provided with valves E, whereby the air may be partially or wholly shut oti' from the vat when (No model.)

desircd. To these pipes is attaehed a horizontal pipe, F, having abranch pipe, Gr, which leads to the air-pump H, tlus providing a continual passage through all the pipes and tubes from said punp to the later-al or distributin g air-opening in said tubes.

It will be seen that when the pump is set in motion the air is forced through all the pipes and is received into the tank through the lateral openings in the lower end of the tube, thus being equally distributed in said tank, and thereby agitating the acids contained therein while the tanning process is in operation.

We are well aware that in the process of tanning leather it is common to agitate the liquor in the Vats by forcibly injeeting air therein. This feature, broadly, we disclaim.

Having described this invention, what we claim, and desire to secure by Letters Patent, s

A tanning a-pparatus consisting of a subdivided vat, each covered conpartinent ot' which is provided with a pipe or injector, C, Suspended therein and perforated near its bottom, in combination with vertical pi pes D, provided with regulatingvalves, the horizontal pipe F, an air-supply pipe, G, and an airforcing engine, as described.

In testinony whereof we affix our signatures in presence of two witnesses.

ARTHUR T. BULL. WILLIAM HILL, J R. Witnesses:

S. DEGEN, J AS. GREENwooD. 

